If its anything like a DT250, try .015 point gap 3.5mm btdc, use a multimeter frame to black wire on mag harness (unplugged) to check continuity (ohms, 0 @ 3.5mm btdc is right where you need it) You will need a plug feeler to properly set it. Setting the gap means nothing alone.
The magneto point gap on a 2hp Yamaha outboard is 0.35mm, or 0.014".
0.019in
gap for my 1995 big bear 350 is 0.6-0.7 mm or .024-.028 in.
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What is the spark plug gap setting for a 1987 yamaha big bear
.032
.7 - .8 mm
18
The factory plug type is A/C R44TX and Gap is 0.060
the gap is 0.8 mill or 0.9 for hotter plugs best of luck
The dwell for the points should be 30 degrees. The spark plug gap should be .040".
ALL HARLEYS WITH POINTS HAVE THE SAME POINT SPECS:.018"POINT GAP AND.025"PLUG GAP..